ok so this is the deal i want to take my car to the track..last time i was thier i ran a 13.00 at 1??mph BUT now i have a cam and a stall converter put in my car. basically my question is,is when is a driveshaft loop required and when is other stuff i dont know about required?? thanks for your help id hate to drive thier and not make it threw tech. i also checked thier site and didn't find anything. thanks again,Mike